Drilldown: Patents

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Patents > Office : ES or FR & Grant date: 1800 - 1899

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Tech fields:
LTA (193) · navigation (160) · propulsion (103) · balloon (61) · aerostat (44) · Dirigible (31) · airship (29) · Balloons (27) · None (26) · airplane (23) · propellers (21) · instrument (19) · marine (18) · safety (17) · dirigibles (16) · ascension (13) · propeller (12) · construction (12)
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Supplementary to patent:
None (473) · Patent FR-1841-9265 (6) · Patent FR-1836-5429 (3) · Patent FR-1898-275602 (3) · Patent FR-1881-142748 (3) · Patent FR-1880-139386 (3) · Patent FR-1878-124576 (3) · Patent FR-1897-271948 (2) · Patent FR-1892-225358 (2) · Patent FR-1881-143264 (2) · Patent FR-1881-143296 (2)
Related to aircraft:
Patent agent:
None (335) · Desnos (17) · Armengaud jeune (17) · Armengaud aîné (13) · Blétry aîné (13) · Société Marillier et Robelet (9) · Chassevent (8) · Dieuaide (7) · Thirion (6) · Émile Barrault (5) · Nauhardt (5) · Société Louis Gudman et Cie (5) · Société Matray frères (5) · Josse (4) · Dumas (4) · Casalonga (4)
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Citations from after 1930:
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